Increasing jet entrainment, mixing and spreading
Abstract
A free jet of air is disturbed at a frequency that substantially matches natural turbulences in the free jet to increase the entrainment, mixing, and spreading of air by the free jet, for example in a room or other enclosure. The disturbances are created by pulsing the flow of air that creates the free jet at the desired frequency. Such pulsing of the flow of air can be accomplished by sequentially occluding and opening a duct that confines and directs the flow of air, such as by rotating a disk on an axis transverse to the flow of air in the duct. 11 figs.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7164272
- Patent Number(s):
- 5338254
- Application Number:
- PPN: US 7-995146
- Assignee:
- Midwest Research Inst., Kansas City, MO (United States)
- DOE Contract Number:
- AC02-83CH10093
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 22 Dec 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; JETS; AUGMENTATION; AIR FLOW; DUCTS; ENTRAINMENT; MIXING; FLUID FLOW; GAS FLOW; 420400* - Engineering- Heat Transfer & Fluid Flow
Citation Formats
Farrington, R B. Increasing jet entrainment, mixing and spreading. United States: N. p., 1994.
Web.
Farrington, R B. Increasing jet entrainment, mixing and spreading. United States.
Farrington, R B. Tue .
"Increasing jet entrainment, mixing and spreading". United States.
@article{osti_7164272,
title = {Increasing jet entrainment, mixing and spreading},
author = {Farrington, R B},
abstractNote = {A free jet of air is disturbed at a frequency that substantially matches natural turbulences in the free jet to increase the entrainment, mixing, and spreading of air by the free jet, for example in a room or other enclosure. The disturbances are created by pulsing the flow of air that creates the free jet at the desired frequency. Such pulsing of the flow of air can be accomplished by sequentially occluding and opening a duct that confines and directs the flow of air, such as by rotating a disk on an axis transverse to the flow of air in the duct. 11 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {8}
}
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